Home / 21,655.48-29,790.82-17,667.80

Finding the Fourth Proportional to 21,655.48, 29,790.82 and 17,667.80

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Solution

The fourth proportional to 21,655.48, 29,790.82 and 17,667.80 is: 24,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.48 : 29,790.82 = 17,667.80 : x
  2. Step 2: Convert to fraction form
    21,655.48/29,790.82 = 17,667.80/x
  3. Step 3: Cross multiply
    21,655.48x = 29,790.82 × 17,667.80
  4. Step 4: Simplify right side
    21,655.48x = 526,338,249.60
  5. Step 5: Solve for x
    x = 526,338,249.60/21,655.48
  6. Step 6: Final answer
    x = 24,305.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.